最佳答案
回答者:网友
O([H])[C@]1([H])C([H])([H])[C@@]2([H])[C@]3([H])C([H])([H])C([H])([H])[C@@]4([H])[C@@]([H])(C([H])([H])[H])[C@]5([H])C([H])([H])C([H])([H])[C@]([H])(C([H])([H])[H])C([H])([H])N5C([H])([H])[C@@]4([H])[C@]3([H])C([H])([H])[C@]2([H])[C@@]2(C([H])([H])[H])C([H])([H])C([H])([H])[C@@]([H])(C([H])([H])[C@@]21[H])O[H]